GEL INK PEN 中性笔 ; 水性笔
gel ink pen refill 中性笔芯
Gel ink pen and refill 中性墨水笔和笔芯
South Korea Gel Ink pen 韩国中性笔
gel-ink pen 中性笔
Upscale all-metal gel ink pen 高档全金属
Activated Gel Ink pen 按动中性笔
Although China was the major manufacture of ball-point pens in the world, the gel pen ink which was in high technology is still rely on importing so far.
我国已成为中性笔的生产和销售大国，但技术含量较高的中性墨水仍主要依赖进口。
Materials: rapidograph, silver gel pen, water color pencil, colored ink, paper.
媒材：针笔、银色中性笔、代针笔、水性彩色铅笔、彩色墨水。纸。
By using the structure, the pen point points downward all the time when the gel ink pen is hung, thereby preventing the ink in the gel ink pen from flowing out.
由于采用上述结构，所以在中性笔在挂笔时，笔尖始终向下，能防止中性笔芯墨溢出。
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